C# 打印文件例子

 以下是MSDN上的例子：

 

[C#] public class PrintingExample { private Font printFont; private StreamReader streamToPrint; static string filePath; public PrintingExample() { Printing(); } // The PrintPage event is raised for each page to be printed. private void pd_PrintPage(object sender, PrintPageEventArgs ev) { float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = ev.MarginBounds.Left; float topMargin = ev.MarginBounds.Top; String line=null; // Calculate the number of lines per page. linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics) ; // Iterate over the file, printing each line. while (count < linesPerPage && ((line=streamToPrint.ReadLine()) != null)) { yPos = topMargin + (count * printFont.GetHeight(ev.Graphics)); ev.Graphics.DrawString (line, printFont, Brushes.Black, leftMargin, yPos, new StringFormat()); count++; } // If more lines exist, print another page. if (line != null) ev.HasMorePages = true; else ev.HasMorePages = false; } // Print the file. public void Printing() { try { streamToPrint = new StreamReader (filePath); try { printFont = new Font("Arial", 10); PrintDocument pd = new PrintDocument(); pd.PrintPage += new PrintPageEventHandler(pd_PrintPage); // Print the document. pd.Print(); } finally { streamToPrint.Close() ; } } catch(Exception ex) { MessageBox.Show(ex.Message); } } // This is the main entry point for the application. public static void Main(string[] args) { string sampleName = Environment.GetCommandLineArgs()[0]; if(args.Length != 1) { Console.WriteLine("Usage: " + sampleName +" <file path>"); return; } filePath = args[0]; new PrintingExample(); }}